Question

What is an advantage of a degenerate genetic code?

Mutations are more likely to alter proteins, increasing the rate of evolution.

Mutations are less likely to alter protein sequence, decreasing the chances that a mutation will have deleterious consequences to the organism.

It increases the number of different proteins that can be coded by each gene.

It decreases the total number of tRNAs that have to be made.

Answer 1

Answer:

The first one

Explanation:

This is because there are no base triplets that are unused in the cell. All of the bases are used since more than one triplet of DNA bases are coded for amino acids

Answer 2

An advantage of a degenerate genetic code is that 'mutations are less likely to alter protein sequence, decreasing the chances that a mutation will have deleterious consequences to the organism'.

• The genetic code refers to the fact that the linear order of nucleotides in DNA and also in mRNA determines the order in which amino acids are added to the protein during translation.

• The genetic code is said to be redundant or degenerate because different triplets of nucleotides or codons in the mRNA can encode the same amino acid.

• For example, leucine can be encoded by six different synonym codons (i.e., CTT, CTC, CTA, CTG, TTA, and TTG).

• In consequence, mutations that generate synonym codons don't have a direct effect on the synthesized protein.

In conclusion, an advantage of a degenerate genetic code is that 'mutations are less likely to alter protein sequence, decreasing the chances that a mutation will have deleterious consequences to the organism'.

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